1211441242223 has 2 divisors, whose sum is σ = 1211441242224. Its totient is φ = 1211441242222.

The previous prime is 1211441242199. The next prime is 1211441242229. The reversal of 1211441242223 is 3222421441121.

It is a strong prime.

It is an emirp because it is prime and its reverse (3222421441121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1211441242223 - 2⁶ = 1211441242159 is a prime.

It is a super-3 number, since 3×1211441242223³ (a number of 37 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1211441242229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605720621111 + 605720621112.

It is an arithmetic number, because the mean of its divisors is an integer number (605720621112).

Almost surely, 2^{1211441242223} is an apocalyptic number.

1211441242223 is a deficient number, since it is larger than the sum of its proper divisors (1).

1211441242223 is an equidigital number, since it uses as much as digits as its factorization.

1211441242223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6144, while the sum is 29.

Adding to 1211441242223 its reverse (3222421441121), we get a palindrome (4433862683344).

The spelling of 1211441242223 in words is "one trillion, two hundred eleven billion, four hundred forty-one million, two hundred forty-two thousand, two hundred twenty-three".